DE69434323D1 - Preparation d'un aimant permanent - Google Patents

Preparation d'un aimant permanent

Info

Publication number: DE69434323D1
Authority: DE; Germany
Prior art keywords: preparation; aimant permanent; aimant; permanent
Prior art date: 1993-11-02
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.): Expired - Lifetime

Application number

DE69434323T

Other languages

German (de)

Other versions

DE69434323T2 (en

Inventor

Katashi Takebuchi

Shinya Fujito

Shinya Hashimoto

Koichi Yajima

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

TDK Corp

Original Assignee

TDK Corp

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

1993-11-02

Filing date

1994-11-02

Publication date

2005-05-04

1993-11-08 Priority claimed from JP30230393A external-priority patent/JP3367726B2/en

1994-11-02 Application filed by TDK Corp filed Critical TDK Corp

2005-05-04 Publication of DE69434323D1 publication Critical patent/DE69434323D1/en

2006-03-09 Application granted granted Critical

2006-03-09 Publication of DE69434323T2 publication Critical patent/DE69434323T2/en

2014-11-03 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Classifications

- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
- H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
- H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
- H01F1/032—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials
- H01F1/04—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials metals or alloys
- H01F1/047—Alloys characterised by their composition
- H01F1/053—Alloys characterised by their composition containing rare earth metals
- H01F1/055—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5
- H01F1/057—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B
- H01F1/0571—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes
- H01F1/0575—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes pressed, sintered or bonded together
- H01F1/0577—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes pressed, sintered or bonded together sintered

Landscapes

Chemical & Material Sciences (AREA)
Crystallography & Structural Chemistry (AREA)
Inorganic Chemistry (AREA)
Engineering & Computer Science (AREA)
Power Engineering (AREA)
Hard Magnetic Materials (AREA)

DE69434323T 1993-11-02 1994-11-02 Preparation d'un aimant permanent Expired - Lifetime DE69434323T2 (en)

Applications Claiming Priority (4)

Application Number	Priority Date	Filing Date	Title
JP29730093		1993-11-02
JP29730093		1993-11-02
JP30230393		1993-11-08
JP30230393A JP3367726B2 (en)	1993-11-08	1993-11-08	Manufacturing method of permanent magnet

Publications (2)

Publication Number	Publication Date
DE69434323D1 true DE69434323D1 (en)	2005-05-04
DE69434323T2 DE69434323T2 (en)	2006-03-09

Family

ID=26561073

Family Applications (2)

Application Number	Title	Priority Date	Filing Date
DE69434323T Expired - Lifetime DE69434323T2 (en)	1993-11-02	1994-11-02	Preparation d'un aimant permanent
DE69431096T Expired - Lifetime DE69431096T2 (en)	1993-11-02	1994-11-02	Manufacture of a permanent magnet

Family Applications After (1)

Application Number	Title	Priority Date	Filing Date
DE69431096T Expired - Lifetime DE69431096T2 (en)	1993-11-02	1994-11-02	Manufacture of a permanent magnet

Country Status (3)

Country	Link
US (1)	US5595608A (en)
EP (3)	EP1260995B1 (en)
DE (2)	DE69434323T2 (en)

Families Citing this family (54)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP0886284B1 (en) *	1996-04-10	2002-10-23	Showa Denko Kabushiki Kaisha	Cast alloy used for production of rare earth magnet and method for producing cast alloy and magnet
DE19636284C2 (en) *	1996-09-06	1998-07-16	Vacuumschmelze Gmbh	SE-Fe-B permanent magnet and process for its manufacture
DE19636283A1 (en) *	1996-09-06	1998-03-12	Vacuumschmelze Gmbh	Process for manufacturing a SE-FE-B permanent magnet
DE19636285C2 (en) *	1996-09-06	1998-07-16	Vakuumschmelze Gmbh	Process for producing an SE-Fe-B permanent magnet
US5849109A (en) *	1997-03-10	1998-12-15	Mitsubishi Materials Corporation	Methods of producing rare earth alloy magnet powder with superior magnetic anisotropy
JP3470032B2 (en) *	1997-12-22	2003-11-25	信越化学工業株式会社	Rare earth permanent magnet material and manufacturing method thereof
US6511552B1 (en) *	1998-03-23	2003-01-28	Sumitomo Special Metals Co., Ltd.	Permanent magnets and R-TM-B based permanent magnets
CN1094991C (en) *	1998-08-28	2002-11-27	昭和电工株式会社	Alloy for use in preparation of R-T-B-based sintered magnet and process for preparing R-T-B-based sintered magnet
US6247660B1 (en) *	1998-10-07	2001-06-19	Sumitomo Special Metals Co., Ltd.	Process for hydrogen-pulverizing a rare earth metal-based magnetic material, and hydrogen-pulverizing case
KR100592471B1 (en) *	1998-10-14	2006-06-23	히다찌긴조꾸가부시끼가이사	Al-T Scaffold Sintered Permanent Magnet
US6302939B1 (en)	1999-02-01	2001-10-16	Magnequench International, Inc.	Rare earth permanent magnet and method for making same
JP3231034B1 (en) *	2000-05-09	2001-11-19	住友特殊金属株式会社	Rare earth magnet and manufacturing method thereof
WO2001091139A1 (en) *	2000-05-24	2001-11-29	Sumitomo Special Metals Co., Ltd.	Permanent magnet including multiple ferromagnetic phases and method for producing the magnet
US6746545B2 (en) *	2000-05-31	2004-06-08	Shin-Etsu Chemical Co., Ltd.	Preparation of rare earth permanent magnets
US6648984B2 (en)	2000-09-28	2003-11-18	Sumitomo Special Metals Co., Ltd.	Rare earth magnet and method for manufacturing the same
KR100771676B1 (en) *	2000-10-04	2007-10-31	가부시키가이샤 네오맥스	Rare earth sintered magnet and method for manufacturing the same
US6676773B2 (en)	2000-11-08	2004-01-13	Sumitomo Special Metals Co., Ltd.	Rare earth magnet and method for producing the magnet
MXPA03004054A (en) *	2000-11-08	2004-04-20	Byk Gulden Lomberg Chem Fab	Process for the rehydration of magaldrate powder.
US7217328B2 (en) *	2000-11-13	2007-05-15	Neomax Co., Ltd.	Compound for rare-earth bonded magnet and bonded magnet using the compound
CN1246864C (en) *	2001-01-30	2006-03-22	株式会社新王磁材	Manufacturing method of permanent magnet
JP4023138B2 (en) *	2001-02-07	2007-12-19	日立金属株式会社	Compound containing iron-based rare earth alloy powder and iron-based rare earth alloy powder, and permanent magnet using the same
EP1377691B1 (en) *	2001-03-30	2005-09-07	Neomax Co., Ltd.	Method of making a rare earth alloy sintered compact
EP1388152A2 (en) *	2001-05-15	2004-02-11	Sumitomo Special Metals Company Limited	Iron-based rare earth alloy nanocomposite magnet and method for producing the same
EP1414050B1 (en) *	2001-07-31	2006-10-25	Neomax Co., Ltd.	Method for producing nanocomposite magnet using atomizing method
ATE335280T1 (en) *	2001-11-22	2006-08-15	Neomax Co Ltd	NANO COMPOSITION MAGNET
US6994755B2 (en) *	2002-04-29	2006-02-07	University Of Dayton	Method of improving toughness of sintered RE-Fe-B-type, rare earth permanent magnets
WO2003107362A1 (en) *	2002-06-13	2003-12-24	住友特殊金属株式会社	Rare earth sintered magnet and method for production thereof
TWI233845B (en) *	2002-09-10	2005-06-11	Nikko Materials Co Ltd	Iron-based sintered compact and its production method
US7192493B2 (en) *	2002-09-30	2007-03-20	Tdk Corporation	R-T-B system rare earth permanent magnet and compound for magnet
US6811620B2 (en)	2003-03-28	2004-11-02	Tdk Corporation	R-T-B system rare earth permanent magnet
CN1310729C (en) *	2003-04-22	2007-04-18	株式会社新王磁材	Method for producing rare earth based alloy powder and method for producing rare earth based sintered magnet
US20060054245A1 (en) *	2003-12-31	2006-03-16	Shiqiang Liu	Nanocomposite permanent magnets
CN100368584C (en) *	2004-04-27	2008-02-13	有研稀土新材料股份有限公司	Rare earth magnetostrictive material preparation method and the material
CA2571401A1 (en) *	2004-06-30	2006-01-12	University Of Dayton	Anisotropic nanocomposite rare earth permanent magnets and method of making
WO2006025187A1 (en) *	2004-08-30	2006-03-09	Nippon Mining & Metals Co., Ltd.	Metal powder for powder metallurgy mainly containing iron and iron-base sintered material
MY149353A (en) *	2007-03-16	2013-08-30	Shinetsu Chemical Co	Rare earth permanent magnet and its preparations
EP2366188A1 (en) *	2008-12-01	2011-09-21	Zhejiang University	Modified nd-fe-b permanent magnet with high corrosion resistance
CN102576590B (en) *	2010-03-31	2014-04-02	日东电工株式会社	Permanent magnet and method for manufacturing permanent magnet
JP5729051B2 (en) *	2011-03-18	2015-06-03	Tdk株式会社	R-T-B rare earth sintered magnet
US9272332B2 (en) *	2011-09-29	2016-03-01	GM Global Technology Operations LLC	Near net shape manufacturing of rare earth permanent magnets
CN103858185B (en) *	2011-10-13	2017-05-03	Tdk株式会社	R-T-B based sintered magnet and production method for same, and rotary machine
DE102013004985A1 (en) *	2012-11-14	2014-05-15	Volkswagen Aktiengesellschaft	Method for producing a permanent magnet and permanent magnet
JP6303480B2 (en)	2013-03-28	2018-04-04	Tdk株式会社	Rare earth magnets
ES2749754T3 (en) *	2013-03-29	2020-03-23	Hitachi Metals Ltd	R-T-B based sintered magnet
CN103219117B (en) *	2013-05-05	2016-04-06	沈阳中北真空磁电科技有限公司	A kind of Double-alloy neodymium iron boron rare earth permanent magnetic material and manufacture method
US10388441B2 (en) *	2013-08-09	2019-08-20	Tdk Corporation	R-T-B based sintered magnet and motor
US10550218B2 (en) *	2013-11-08	2020-02-04	Hrl Laboratories, Llc	Transparent anti-icing coatings
JP6142792B2 (en) *	2013-12-20	2017-06-07	Tdk株式会社	Rare earth magnets
JP6142793B2 (en) *	2013-12-20	2017-06-07	Tdk株式会社	Rare earth magnets
JP6142794B2 (en) *	2013-12-20	2017-06-07	Tdk株式会社	Rare earth magnets
JP5686214B1 (en) *	2014-03-28	2015-03-18	Tdk株式会社	R-T-B permanent magnet
US10446306B2 (en) *	2014-09-17	2019-10-15	Hitachi Metals, Ltd.	Method for manufacturing R-T-B based sintered magnet
US9905345B2 (en)	2015-09-21	2018-02-27	Apple Inc.	Magnet electroplating
JP6488976B2 (en) *	2015-10-07	2019-03-27	Tdk株式会社	R-T-B sintered magnet

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPH0789521B2 (en) *	1985-03-28	1995-09-27	株式会社東芝	Rare earth iron permanent magnet
DE3676403D1 (en) *	1985-09-10	1991-02-07	Toshiba Kawasaki Kk	PERMANENT MAGNET.
EP0261579B1 (en) *	1986-09-16	1993-01-07	Tokin Corporation	A method for producing a rare earth metal-iron-boron permanent magnet by use of a rapidly-quenched alloy powder
GB2201426B (en) *	1987-02-27	1990-05-30	Philips Electronic Associated	Improved method for the manufacture of rare earth transition metal alloy magnets
DE3750367T2 (en) *	1987-04-30	1994-12-08	Seiko Epson Corp	Permanent magnet and its manufacturing process.
US4968347A (en) *	1988-11-22	1990-11-06	The United States Of America As Represented By The United States Department Of Energy	High energy product permanent magnet having improved intrinsic coercivity and method of making same
US5049335A (en) *	1989-01-25	1991-09-17	Massachusetts Institute Of Technology	Method for making polycrystalline flakes of magnetic materials having strong grain orientation
DE4027598C2 (en) *	1990-06-30	1997-09-11	Vacuumschmelze Gmbh	Permanent magnet of type SE-Fe-B and process for its production
JPH04338607A (en) *	1991-05-16	1992-11-25	Kawasaki Steel Corp	Manufacture of rare earth-transition metal magnet
JP3143157B2 (en) *	1991-07-12	2001-03-07	信越化学工業株式会社	Manufacturing method of rare earth permanent magnet
DE4135403C2 (en) *	1991-10-26	1994-06-16	Vacuumschmelze Gmbh	SE-Fe-B permanent magnet and process for its manufacture
JP2782024B2 (en) *	1992-01-29	1998-07-30	住友特殊金属株式会社	Method for producing raw material powder for R-Fe-B-based permanent magnet
JP3932143B2 (en) *	1992-02-21	2007-06-20	Ｔｄｋ株式会社	Magnet manufacturing method
US5482575A (en) *	1992-12-08	1996-01-09	Ugimag Sa	Fe-Re-B type magnetic powder, sintered magnets and preparation method thereof

1994
- 1994-11-02 DE DE69434323T patent/DE69434323T2/en not_active Expired - Lifetime
- 1994-11-02 EP EP02017128A patent/EP1260995B1/en not_active Expired - Lifetime
- 1994-11-02 US US08/333,982 patent/US5595608A/en not_active Expired - Lifetime
- 1994-11-02 DE DE69431096T patent/DE69431096T2/en not_active Expired - Lifetime
- 1994-11-02 EP EP94308097A patent/EP0651401B1/en not_active Expired - Lifetime
- 1994-11-02 EP EP00120135A patent/EP1073069A1/en not_active Withdrawn

Also Published As

Publication number	Publication date
EP1260995A2 (en)	2002-11-27
EP1260995A3 (en)	2002-12-04
EP1260995B1 (en)	2005-03-30
US5595608A (en)	1997-01-21
DE69431096D1 (en)	2002-09-05
EP1073069A1 (en)	2001-01-31
EP0651401B1 (en)	2002-07-31
DE69434323T2 (en)	2006-03-09
DE69431096T2 (en)	2003-01-23
EP0651401A1 (en)	1995-05-03

Publication	Publication Date	Title
DE69434323D1 (en)	2005-05-04	Preparation d'un aimant permanent
NO943999D0 (en)	1994-10-21	1 aminoetylindolderivater
FI925790L (en)	1993-06-21	17-SPIROFURAN-3'YLIDENESTROIDS
KR950012487U (en)	1995-05-17	V-Cal's Case Structure
DK103393D0 (en)	1993-09-15	PREPARATION
ES1025902Y (en)	1995-01-16	"MOCHO FRIEGASUELOS"
LV5407A3 (en)	1994-03-10	Immunostimulant "timogen"
FI752U1 (en)	1993-06-09	"Rullande" poor
ES1023646Y (en)	1994-04-01	"TOY"
ES1023657Y (en)	1994-04-01	"EXHIBITOR CASE"
UA264S (en)	1994-07-25	"KAPITOSHKA" DOLL
ITCT920025A0 (en)	1992-08-05	"TEETH-SAVE 2"
BR9200720A (en)	1993-08-24	"REATESTE"
DK95593D0 (en)	1993-08-24	PREPARATION
SE9001883D0 (en)	1990-05-25	PIVAASAENGEN "NATTUGGLAN"
ES1018982Y (en)	1992-10-01	"BRAGA-COMPRESA"
ES1018426Y (en)	1992-09-01	"MUNECO DIDACTICO"
UA315S (en)	1994-10-25	"ELASTIC" HYDROOVERALLS
ITRE910101V0 (en)	1991-12-19	"EXPOSITOR"
ITPS910048V0 (en)	1991-11-29	"SBOSSOLATRICE"
ITPE910048V0 (en)	1991-11-29	"SBOSSOLATRICE"
ITCT910013A0 (en)	1991-06-24	BIO-PRIMING "NUTRIOR BIO-DINAMO"
ITPS910018A1 (en)	1993-05-29	"SBOSSOLATRICE"
ITCT940031A0 (en)	1994-12-13	"SBUFFI"
UA680S (en)	1994-12-29	SHIP-SERVICE-TRAVEL

Legal Events

Date	Code	Title	Description
2006-05-11	8364	No opposition during term of opposition
2009-03-19	8320	Willingness to grant licences declared (paragraph 23)